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LFM2.5-VL-3B vs Seed 2.1 Pro

Seed 2.1 Pro significantly outperforms across most benchmarks.

Liquid AI · ByteDance · Updated for 2026

Which is better?

LFM2.5-VL-3B outperforms in 0 benchmarks, while Seed 2.1 Pro is better at 4 benchmarks (BLINK, MMMU-Pro, RealWorldQA, SimpleVQA). Seed 2.1 Pro significantly outperforms across most benchmarks.

Based on current benchmark, pricing, and model metadata for 2026.

Choose LFM2.5-VL-3B

  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

Choose Seed 2.1 Pro

  • you want the strongest raw capability — it leads on 4 of 4 shared benchmarks

At a glance

The differences that matter most.

LFM2.5-VL-3B
Liquid AI
Seed 2.1 Pro
ByteDance
Benchmark wins
0 of 4
4 of 4
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—
Released
Aug 2026
Jun 2026
License
LFM Open License v1.0
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

LFM2.5-VL-3B outperforms in 0 benchmarks, while Seed 2.1 Pro is better at 4 benchmarks (BLINK, MMMU-Pro, RealWorldQA, SimpleVQA).

Seed 2.1 Pro significantly outperforms across most benchmarks.

Mon Aug 24 2026 • llm-stats.com

Arena Performance

Playground indexes and blind preference scores

Input Capabilities

Supported data types and modalities

Both LFM2.5-VL-3B and Seed 2.1 Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

LFM2.5-VL-3B

Text
Images
Audio
Video

Seed 2.1 Pro

Text
Images
Audio
Video

License

Usage and distribution terms

LFM2.5-VL-3B is licensed under LFM Open License v1.0, while Seed 2.1 Pro uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

LFM2.5-VL-3B

LFM Open License v1.0

Open weights

Seed 2.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

LFM2.5-VL-3B was released on 2026-08-12, while Seed 2.1 Pro was released on 2026-06-24.

LFM2.5-VL-3B is 2 months newer than Seed 2.1 Pro.

LFM2.5-VL-3B

Aug 12, 2026

1 weeks ago

1mo newer
Seed 2.1 Pro

Jun 24, 2026

2 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against LFM2.5-VL-3B and Seed 2.1 Pro side-by-side, then vote on the output you prefer.

LFM2.5-VL-3B
✓ Preferred
Seed 2.1 Pro
Open in Playground

FAQ

Common questions about LFM2.5-VL-3B vs Seed 2.1 Pro.

Which is better, LFM2.5-VL-3B or Seed 2.1 Pro?

Seed 2.1 Pro significantly outperforms across most benchmarks. LFM2.5-VL-3B is made by Liquid AI and Seed 2.1 Pro is made by ByteDance. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does LFM2.5-VL-3B compare to Seed 2.1 Pro in benchmarks?

LFM2.5-VL-3B scores DocVQA: 91.1%, POPE: 88.7%, RefCOCO-avg: 87.9%, TextVQA: 84.3%, OCRBench: 84.2%. Seed 2.1 Pro scores CharXiv-D: 95.5%, MathVision: 94.5%, MathVista: 90.7%, MathVerse: 89.7%, Video-MME: 89.2%.

What are the main differences between LFM2.5-VL-3B and Seed 2.1 Pro?

Key differences include licensing (LFM Open License v1.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes LFM2.5-VL-3B and Seed 2.1 Pro?

LFM2.5-VL-3B is developed by Liquid AI and Seed 2.1 Pro is developed by ByteDance.

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